html,body{
    background-color: #f7f7ff;
}
.bg{
    .bg-box{
    width: 100vw;
    height: 100px;
    background:url(../images/shopbag_bg.png) no-repeat;
    background-size: 100vw 100%;
    }
    .content{
        margin: 0px 10px;
        padding: 10px;
        background-color: #fff;
        transform: translateY(-20px);
        border-top-right-radius: 10px;
        border-top-left-radius: 10px;
    }
}